<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>11-圆角</title>
		<style type="text/css">
			.box{
				width:200px;
				height:200px;
				background:red;
				/* 圆角 */
				
				/* 分开的写法 */
/* 				border-top-left-radius:5px;
				border-top-right-radius:5px;
				border-bottom-left-radius:5px;
				border-bottom-right-radius:5px; */
				
				border-radius:5px;
				
			}
		</style>
	</head>
	<body>
		<div class="box">
			
		</div>
	</body>
</html>
